Installation of Unit
Power
Supply
and
Wiring
The unit is completely wired internally at the factory according to general rule of electrical technology, but local rules, if they are required, should be complied with.
1. Power supply
Power source must fulfill the following conditions:
•The working voltage should be higher than 90% and lower than 110% of the rated voltage marked on the name plate.
Voltage
Power source voltage working voltage
Starting voltage
Starting point |
Time |
•The starting voltage should be higher than 85% of the rated voltage marked on the name plate.
2. Wiring
After the confirmation of the above conditions, prepare the wiring as follows:
•Use the power supply cord(Rubber insulation, type Ho7RNF approved by HAR or SAA) suitable for the product's electriccal capacity.
UNIT | VOLTS | Conductor | ||
(BTU/h) | ||||
| ||||
20k/28k/ | H/P | 450/750V | 4.0mm2 | |
30k/40k | C/O | 450/750V | 4.0mm2 | |
44k/48k/ | H/P | 450/750V | 5.5mm2 | |
50k | C/O | 450/750V | 5.5mm2 | |
80k | H/P | 450/750V | 8.0mm2 | |
C/O | 450/750V | 8.0mm2 | ||
| ||||
•Provide a recognized circuit breaker as below between power source and unit. A disconnection device to adequately disconnect all supply lines must be fitted. (for service operations)
UNIT (BTU/h) |
| Circuit breaker capacity | ||||
|
|
|
|
|
|
|
|
| 20k/28k/ |
| H/P | 30A | |
1 Phase |
| 30k/40k |
|
| C/O | 30A |
|
|
|
|
| ||
44k/48k/ |
| H/P | 40A | |||
|
|
| ||||
|
| 55k/60k |
| C/O | 40A | |
|
|
|
|
|
| |
|
| 44k/48k/ |
|
| H/P | 30A |
3 Phase |
| 50k/60k |
| C/O | 30A | |
|
| H/P | 50A | |||
|
| 80k |
|
| ||
|
|
|
| C/O | 50A | |
|
|
|
|
| ||
|
|
|
|
|
|
|
•The screws which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation. Check them and make sure that they are all tightly fastened.
(If they are loose, it could give rise to burn- out of the wires.)
•See to it that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate.
•The following troubles would be caused by voltage
Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the normal function of a overload protection device.
*Separate main and heater power supply for Z model. (Do not connect together to the same power supply)
| Unit (BTU/h) | Breaker | Conductor |
|
|
|
|
Heater | 20k/28k | 30A | 3.5mm2 |
Wiring | 30k/40k |
|
|
Spec. | 44k/48k | 40A | 5.5mm2 |
| 50k/60k |
|
|
| 80k | 50A | 8mm2 |
16Floor Standing type Air Conditioner